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. 2020 Feb 12;17:22. doi: 10.1186/s12966-020-0923-1

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© The Author(s). 2020

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 5 — Self-reported opinions and challenges using the FoodFlip© app (n = 1438¹). Bars show the proportion of participants who provided written responses to the question: “What are some of the challenges you had when using the app?”. Data grouped by thematic analysis and analysed using chi-square test for proportions/counts and presented as % (number of participants)